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E. F. GENNERT.

ROTARY DISPLAY BODY.

No. 352,646. Patented Nov. 16, 1886.

WITNESSES:

ATTORNEY N. PETERS. Plnlo-Ulhngnphur. Washington. D-C- Nrrn 'ra'rns ATENT rricn.

ROTARY DISPLAY-BODY.

SPECIFICATION forming part of Letters Pat Application filed June 9, 1886. S

ent No. 352,646, dated November 16, 1886.

crial No. 204,559. (No model.)

To all whom it may concern.-

Be, it known that I, EMIL F. Gnunnn'r, a citizen of the United States, and aresident of Brooklyn, county of Kings, and State of New 5 York, have invented a new and useful Improvement in Rotating Display- Bodies, of which the following is a specification.

My invention relates to mechanism for holding and supporting display-bodies -such as (O globes,shades,signs,&c.-and which is adapted to be rotated by the heated currents of air which rise from an illuminating-flame, and has for its object a mode of construction which will produce at low cost a simple and efficient 15 mechanism; and it consists in the construction and combination of parts, devised with reference to simplicity and ease of manufacture, and'the employment and positioning of material, so that the heat of the flame will not 20 be detrimental, as will more fully appear, rel"- erenoe being had to the accompanying drawings, in which Figure lis a vertical view, partly in-section; and Fig. 2, a horizontal top view of the bucket-wheel.

A, Fig. 1, shows a vertical standard of suitable length, which, it will be obvious, may be firmly secured at itsiower end, either to a stationary support or to a movable supportingbase, such as an ordi ary gas bracket or an 0 Argand gas or kerosene lamp. As shown in Fig. 1, it is secured toagas-bracket by means of a central socket midway between two arms, aa, having tips or jets B B. At its upper end asocket or step, E, of lava, (so called,)

5 is secured by any suitable means. I prefer to use a cap, as shown at O, which I countersink from its upper face to form a seat, into which I set the lava step and secure it there by spinning over its edge the edge or rim of the cap. 0 This cap 0 is made to screw onto the upper end of the standard, and, if desired, it may also be made. reserve as the central support for a globe or shade holder, as it may sometimes be desirable to use a stationary globe or shadeinside of the rotating display-body. The

' lava-step is concaved in its upper side,'so as to form a socket-bearing for the pivot F of the rotating parts of the mechanism. The pivot F, I prefer to make of iron, its lower end ter- 50 minating in a small rounded point and the upperend terminatingin a-tang, which is threaded .to receive the nut or ac 'nfi, by means of which it is firmly secured to the bucket-wheel I and center of holder H.

nut G may be cm the bucket-wheel I and holder 11 This pivot F and means of securing together when they are made in separable pieces; but I prefer to secure them together with rivets, as shown at S. In ordinary cases, however, make the bucket-wheel I and holder H of one piece or disk of sheet metal. I do this by severing the disk of sheet metal in radial and tangent lines, as shown by M andN, Fig. 2, then bending the free angles to a suitable incline to form vanes or buckets. These, it will be observed, may be bent at any desired incline, and thus be adjusted to pro sired speed of rotation.

In forming a combined bucket-wheel of but one piece of sheet metal I prefer to sever or cut it in such way that three or more of the buckets are made sufficiently wide to admit of having a corrugated rib formed along their fixed sides, as is shown at L, Fig. 2, thus forming rigid supporting-arms for the rim or holder H, which is made in this case by turning down a flange, so as to form a vertical band or rim, H, which is provided with three or more setscrews, 0, by means of which the displaybody K is properly secured in position.

The display-body K may be of any transparent or semi-lucent material and of any suitable form required. Its upper portion, however, should be provided with aflange or flaringlugs adapted to engage, with the set screws, as shown. It is obvious that great scope and variety of form and device may be employed Its lower end. may be made widely open,so the. the light-rays will fall upon goods placed be neath, and the inside may be made to inten sify these rays by giving it more or less re fleeting-surface.

In making a combined bucket-wheel an holder of separate pieces I sever a disk ShBE of metal in a number of equidistantradial line& from the circumference to near the acute] which latter part is pierced centrally to receiv the tang of the pivot F, and also pierced in se eral places a short distance from the center f( rivets S. The holder His made with a corr sponding central plate, which is pi rced Wil holes to match. From this central plate thr or more radial arms extend to avertical bar or rim, H, which is provided with the prop ployed as a duce the de-.

set-screws. This holder and bucket-wheel are then riveted together, as shown at S, and the vanes or buckets I twisted to an inclination with the plane of rotation without giving either an upward or downward curve, and with one of their angles free, so that they may be changed to a different inclination at any time, and thus adjusted to the required speed of rotation.

Sleeve D is set over and extends above cap 0, so asto act as a guide when putting displaybody holder and pivot in its place on the lava step E, and forms a safety-rim to keep the pivot 111 its position if t he display-bo dy is acrial which is hardened in a kiln after it has been shaped, and therefore the heat or gas does not affect it in any manner. The baking renders the material extremely hard, andtherefore is well adapted for the purpose intended.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a mechanism for rotating display- )odies, a combined bucket-wheel and body- 1ol'der, as I and H, provided with a concen- ;ric pivot on its under side, in combination vith a standard, as A, having burners B B, aid standard surmounted with a step or socket adapted to receive the said its free rotation, substantially as and for the 0 purpose set forth.

as F and G, a straight standard,

surmounted with stantially in he 2 comprising a mechanism for rotating displaybodies, as set forth and described. I

In testimony thatIclaim the foregoinga'smy r pivot and permit In a mechanism for rotating displaybodies, a pivot forming the central point of rotang, with a nut and a combined such as described,

A, having and step, as E, arranged in the for the purpose substantially as.

screw thereon,

. I 4o 3. Incombination,acombinedbucket-wheel I and H, a pivot-center and nut, B, said standard beinga step, as E, arranged sub- 45 er as shown, the whole invention I have signedmy name, 1n presence 50 of two Witnesses, this 4th day of J une, 18 86.

EMIL F. GENNERT.

\Vitnesses:

O. F. KELLEY, N. FARQUHAR. 

